Properties of Hydrocarbons

Which hydrocarbons is a liquid at room conditions?

• C₂H₆

• C₄H₁₀

• C₁₆H₃₄

• C₁₈H₂₈

Which structural formula has the highest of the boiling point?

• CH₃CH₃

• CH₃CH₂CH₂CH₃

• CH₃CH₂CH₂CH₂CH₃

• CH₃CH₂CH₃

When this equation is balanced:

C₅H₁₂ + O₂(g) --> CO₂(g) + H₂O(l)

The summation of all coefficients are_____________.

• 18

• 19

• 20

• 21

Which is not correct?

• C₂H₂ produces soot, but C₂H₆ does not.

• C₃H₈ produces soot, but C₃H₆ does not.

• C₃H₆ produces soot, but C₂H₆ does not.

• C₄H₈ produces soot, but C₄H₁₀ does not.

C₅H₁₂ + Br₂ --> C₅H₁₁Br + HBr

This reaction is called____________________.

• Substitution

• Addition

• Cracking

• Combustion

Which is NOT correct for types of reaction?

• C₆H₁₄ + Br₂ --> C₆H₁₃Br + HBr (Addition)

• 2C₆H₁₄ + 13O₂ --> 12CO₂ + 14H₂O (Combustion)

• C₆H₁₂ + Br₂ --> C₆H₁₂Br₂ (Addition)

• 3C₆H₁₂ + 2KMnO₄ --> 3C₆H₁₄O₂ + 2MnO₂ + 2KOH (Oxidation)

(X) + 2Br₂ --> C₆H₁₀Br₄ (X) is___________.

• C₆H₁₄

• C₆H₁₂

• C₆H₁₁

• C₆H₁₀

X is organic compound and can make the color of KMnO₄ disappear.

The molecular formula of X is_____________.

• C₂H₆

• C₂H₄

• C₃H₈

• C₄H₁₀

Which compounds can react with Br₂ in CCl₄ in the presence of light, to produce

HBr gas that indicate the acid property?

• CH₂ = CH₂

• CH₃ – CH₃

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Consider the following data:

1) Produce sooty flame when is burnt.

2) Substitution reaction take place with Cl₂ in the presence of light and catalyst.

3) Does not decolorize KMnO₄ in acid.

Which compounds indicates the following properties?

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